On 2/24/2023 7:09 AM, Stefan Monnier via Bug reports for GNU Emacs, the 
Swiss army knife of text editors wrote:
>> +      (let ((buffer-p (if (match-beginning 1)
>> +                          (equal (match-string 1) "buffer")
>>                           t)) ;; buffer-p is non-nil by default.
> 
> The comment just describes what the code does but it would be more
> useful to explain why.

Thanks, fixed.